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a normally open device simply means that it is open (or it is an incomplete circuit) in its normal state and when the normal state changes it closes, either instantaneously or stays closed in a latch mode. a normally open device can be wired in series or parallel depending on what your purpose is.
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Are the lights in your house wired in series or in parallel?
it would be kind of both
Why in houses if one bulb is fused the rest of the bulbs continue to glow?
If a circuit is wired in parallel, all the bulbs have their own independent access to electricity, so if one bulb goes out, the others are not affected. If the circuit is wired in series, then one bulb going out will block the current to all the other bulbs as well.
Would the brightness of a parallel circuit of 3 globes increase or decrease when a fourth is added?
The brightness would remain constant but the power draw will increase. If the circuit was series wired, the brightness would go down as you added bulbs.
Explain why buildings are wired using parallel circuits rather than series circuits.?
Homes are wired in parallel because of basic electrical theory. If something in a series circuit fails, the electrons cannot flow anymore. The WHOLE circuit is now down. Also, the voltage would drop after every resistance. A breaker is on each separate circuit in your house as protection. Those separate circuits are broken down even more as parallel circuits. When you unplug something, the whole circuit isn't affect (well, current, but you can still use your other electronics). Also, voltage must be at a certain level for all our things. In series, the resistance would lower the voltage, which can harm electronics designed for higher voltages.
What is snapse?
A "synapse" is the gap between neurons in the brain. Since the brain is not hard wired, and the neurons are only connected by a chemical synapse, the brain can be "re-wired" to act in a way it did not before. This is how we are able to learn and perfect new skills.
